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Grantham, NH Weather Forecast
Grantham, NH Weather Forecast Dated: 1032 AM Wed Sep 30 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. generally humid conditions and a stable pattern will dominate.
Wednesday, September 30, 2026
Mid-Morning
56°F 13°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
62°F 17°C
Overcast
Refreshing around 64°F 18°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
70°F 21°C
Overcast
Early-Evening
63°F 18°C
Scattered Showers
Comfortable with temperatures reaching 70°F 21°C, scattered downpours possible, with steady humidity and steady pressure. Winds out of the WSW at 9 mph 15 km/h.
Friday, October 2, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
62°F 17°C
Overcast
Comfortable at 63°F 17°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds switching from the SSW to the W at 6 mph 10 km/h.
Saturday, October 3, 2026
Mid-Morning
48°F 9°C
Sunny
Mid-Afternoon
58°F 14°C
Sunny
Early-Evening
51°F 10°C
Sunny
Cool with a high near 58°F 14°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the NNW to the NE at 3 mph 5 km/h.
Sunday, October 4, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
53°F 12°C
Sunny
Refreshing around 61°F 16°C, overcast through the afternoon, turning sunny this evening, with increasing humidity and barometric pressure falling. Winds out of the S at 8 mph 12 km/h.
Monday, October 5, 2026
Mid-Morning
53°F 11°C
Scattered Showers
Mid-Afternoon
55°F 13°C
Scattered Showers
Early-Evening
45°F 7°C
Scattered Showers
Cool and brisk at 55°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds shifting from the WSW to the NNW at 10 mph 15 km/h. Gusts up to 20 mph 33 km/h.
Tuesday, October 6, 2026
Mid-Morning
34°F 1°C
Sunny
Mid-Afternoon
46°F 8°C
Sunny
Early-Evening
39°F 4°C
Sunny
Chilly near 46°F 8°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NW to the NNW at 5 mph 8 km/h.
Wednesday, October 7, 2026
Mid-Morning
38°F 3°C
Sunny
Mid-Afternoon
54°F 12°C
Sunny
Early-Evening
47°F 9°C
Partly Cloudy
Crisp with a high near 54°F 12°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling.
Thursday, October 8, 2026
Mid-Morning
47°F 9°C
Cloudy
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
55°F 13°C
Scattered Showers
Refreshing around 61°F 16°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds out of the WSW at 10 mph 16 km/h.
Friday, October 9, 2026
Mid-Morning
49°F 10°C
Sunny
Mid-Afternoon
56°F 13°C
Overcast
Early-Evening
48°F 9°C
Overcast
Cool and brisk at 56°F 13°C, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds moving from the W to the NNW at 6 mph 9 km/h.
Saturday, October 10, 2026
Mid-Morning
40°F 4°C
Sunny
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
48°F 9°C
Sunny
Chilly near 55°F 13°C, sunny throughout the day, with lower humidity and steady pressure.
Sunday, October 11, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
60°F 16°C
Sunny
Early-Evening
52°F 11°C
Sunny
Cool with a high near 60°F 16°C, sunny throughout the day, with steady humidity and barometric pressure falling.
Monday, October 12, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
65°F 19°C
Sunny
Early-Evening
57°F 14°C
Sunny
Refreshing around 65°F 19°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
Tuesday, October 13, 2026
Mid-Morning
49°F 10°C
Sunny
Mid-Afternoon
60°F 15°C
Partly Cloudy
Early-Evening
53°F 12°C
Sunny
Mildly cool near 60°F 15°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
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